Collapsible box or case for holding electric and other bulbs



April 8, 1930.. J. BROWNLIE ET AL COLLAPSIBLE BOX OR CASE FOR HOLDINGELECTRIC AND OTHER BULBS Filed May '7. 1928 1/ A s i Patented Apr. 8,1930 UNITED STATES PATIENT orrlcla'.

JAMES BROWNLIE, F DENNISTOUN, GLASGOW, AND ARCHIBALD HORSLEY, 0FTHORNLIEIBANK, GLASGOW, SCOTLAND COLLAPSIBLE BOX 0R CASE FOR HOLDINGELECTRIC AND OTHER BULBS Application filed May 7, 1928, Serial No.275,815, and in Great Britain December 10,1927.

Our invention relates to improvements in and connected with collapsibleboxes or cases for holding electric and other bulbs, and is animprovement in or modification of our earlier application No. 233,281,of 14th November,

1927, and has for its object inter alia to reduce the cost and simplifythe packing of such and atthe same time enable the bulb to be testedwithout removing it from the case or box.

In carrying out this invention under one form of construction, the boxor case is made of one-piece of cardboard or other suitable material andis so scored as to form the four sides of the box or case, one of thesides being provided with a slit and that on the side at the oppositeend is of rounded formation to easily slip into the slit when the box ismade up and binds the whole together. The cardboard is further out andscored at the lower end to form the bottom and top of the box or caseand the carrier for the bulb. In this carrier a shelf is formed, havinga circular hole for the reception of the neck of the bulb and a circularhole is also formed on the bottom or base of the box or case by which itcan be seen, when tested, whether the bulb is perfect or defective. Atongue-piece is formed on the lower part of the walls of the carrierwith a double elastic band on and between which the bottom part of thebulb rests, the tonguepiece pressing against the bulb thereby retains itin position having sufficient resiliency or spring to prevent any damageto the bulb while in the box or case. A small tongue is also formed onthe upper end of one of the walls of the carrier by which the loose endof the side of the shelf becomes locked in position. When the sides arefolded over to form the box or case, the whole becomes one complete andperfect unit and ver readily collapsed for the removal of the bulb.

In place of having the rubber band, a shelf of cardboard or such likematerial may be provided and which is suitably stitched to the box orcase, but otherwise it is in every way similar to that alreadydescribed. When it is desired to test the bulb, the top or cover isopened on its hinge and the metal part exposed.

ber band 0, we provide a shelf S of cardboard In order that ourinvention may be properly understood and; readily carried into effect,we have hereunto appended one sheet of drawings, of which Figure l is aside perspective view of the box or case partially open and containing alamp.

Figure 2 is an end perspective view of box or case slightly opened.

Figure 3 is a plan of complete sheet of which the box or case is formedon reduced sea a.

Figure 4 is a sectional elevation of a slightly modified form of box orcase.

Referring to the drawings, A, B, C and D are the four sides of the boxor case formed by scoring, as shown in dot "and dash lines, Figure 3,the side D having the slit E cut thereon, and F is the flap on the sideA which is of rounded formation and fits into the slit E in the side Dwhen the box or case is built up, thus, as stated, binding the wholetogether. G is the bottom or end of the box or case formed by scoringand is provided with a circular hole G by which it can be observed 75whether the bulb is perfect, and H is the top formed by scoring. I isthe shelf which is likewise formed by scoring and has also acircularhole I for the reception of the neck J of the bulb K. L and Mare the walls of the carrier formed by cutting the cardboard or othermaterial, each having a tongue piece N and N respectively cut thereon towhich there is attached the rubber band 0. A tongue P is also providedon the wall M adjacent the top H thereby locking the loose end Q, of theshelf I in position. R is the top flap of the end of the box or case.

Referring to Figure 4 in place of the rubor such like which is stitchedor otherwise attached to the box or case and is also provided with ahole S for inspection purposes.

Claims:

1. A collapsible box formed from a single blank and comprising fourouter or covering wall members A, B, C, D initially arranged in a seriesside by side, an end member G united to one of said first named members,inner wall members L, M on opposite sides and united to said end memberand closure flaps H, I at the outer ends of said inner wall members.

2. A collapsible box as claimed in claim 1, including also a flap F atthe outer side of one of the outermost outer wall members and arrangedto engage in a slot E in the other outermost outer wall member.

In witness whereof we affix our signatures.

JAMES BROWNLIE.

ARCHIBALD HORSLEY.

